St. John Climacus
Writer on asceticism and the spiritual life
Saint John Climacus (Ἰωάννης τῆς Κλίμακος c. 7th Century AD), also known as John of the Ladder, John Scholasticus and John Sinaites, was a 7th century Christian monk at the monastery on Mount Sinai. He is revered as a saint by the Roman Catholic, Oriental Orthodox, Eastern Orthodox and Eastern Catholic churches. We have almost no information about John's life. There is in existence an ancient Vita, Life of the saint by a monk named Daniel of Raithu monastery.